These sort of sequences are actually relatively rare. For whatever reason, this series (the manga, never seen the anime) has yet to disappoint me and it seems to get continuously better over time. It's so good, it can't be shonen.

You know, even though you could rag on this manga for being harem, the truth is that it has excellent character interaction for such a large cast. More than this, what many people don't seem to be noticing is that it does not simply follow the idea of the idealized hero on a quest to save the world. It is the story of that hero's son and him just trying to help his friends and village be safe, not the whole world or some generic shit like that. Also, he is really just some kid in his fathers shadow trying to clean up the mess left behind, he is not even the biggest hero in the manga, its his dad that you don't even see.

I picture Negi sitting on a throne of girls holding him high above the ground and spread out for miles. The original girls will make up the main parts this throne, basking in his manliness as even his gaze is enough to satisfy them completely as they writhe against each others bodies in sheer pleasure. He will speak when he feels pity on them and the untold thousands shall echo his every syllable.